分类(Classification)与回归(Regression)都属于监督学习，他们的区别在于： 分类：用于预测有限的离散值，如是否得了癌症（０，１），或手写数字的判断，是0,1,2,3,4,5,6,7,8还是9等。分类中，预测的可能的结果是有限的，且提前给定的。 回归：用于预测实数值，如给定了房子的面积，地段，和房间数，预测房子的价格。 LinearRegression 拟合一个带有系数 w = (w1, …, wp) 的线性模型，使得数据集实际观测数据和预测数据（估计值）之间的残差平方和最小。 其数学表达式为: 进行预测前查看一下数据集 https://scikit-learn.org

Understanding and Using Linear Programming

一本介绍线性代数很好的书籍，此版本为英文版，下载时务必注意

经典图书linear system by lailath 英文pdf版

英文原版,可编辑. 包含书签和目录. 目录可跳转. The purpose of this book is to provide an introduction to system theory with emphasis on control theory. It is intended to be the textbook of a typical one-semester course introduction to systems primarily for first-year graduate students in engineering, but also in mathematics, physics, and the rest of the sciences. Prerequisites for such a course include undergraduate-level differential equations and linear algebra, Laplace transforms, and modeling ideas of, say, electric circuits and simple mechanical systems. These topics are typically covered in the usual undergraduate curricula in engineering and sciences. The goal of this text is to provide a clear understanding of the fundamental concepts of systems and control theory, to highlight appropriately the principal results, and to present material sufficiently broad so that the reader will emerge with a clear picture of the dynamical behavior of linear systems and their advantages and limitations.

TI Linear芯片模拟放大器运放ALTIUM原理图库封装库（AD集成库）708个合集,IntLib后缀文件，拆分后文件为PcbLib+SchLib格式，Altium Designer原理图库+PCB封装库，官方提供的集成封装库，可以放心使用，直接应用到你的项目开发。 Library Component Count : 708 Name Description ------------------------------------------------------------------------- LM4940TS/NOPB 6 W Stereo Audio Power Amplifier, -40 to 85 degC, 9-pin DPAK (KTW9), Pb-Free (RoHS Exempt) LM4940TSX/NOPB 6 W Stereo Audio Power Amplifier, -40 to 85 degC, 9-pin DPAK (KTW9), Pb-Free (RoHS Exempt) LM4952TS/NOPB 3.1 W Stereo-SE Audio Power Amplifier with DC Volume Control, -40 to 85 degC, 9-pin DPAK (KTW9), Pb-Free (RoHS Exempt) LM4952TSX/NOPB 3.1 W Stereo-SE Audio Power Amplifier with DC Volume Control, -40 to 85 degC, 9-pin DPAK (KTW9), Pb-Free (RoHS Exempt) LOG101AID Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG101AIDE4 Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG101AIDR Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG101AIDRE4 Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG102AID Logarithmic and Log Ratio Amplifier, 0 to 70 degC, 14-pin SOIC (D14), Green (RoHS & no Sb/Br) LOG102AIDG4 Logarithmic and Log Ratio Amplifier, 0 to 70 degC, 14-pin SOIC (D14), Green (RoHS & no Sb/Br) LOG102AIDR Logarithmic and Log Ratio Amplifier, 0 to 70 degC, 14-pin SOIC (D14), Green (RoHS & no Sb/Br) LOG102AIDRG4 Logarithmic and Log Ratio Amplifier, 0 to 70 degC, 14-pin SOIC (D14), Green (RoHS & no Sb/Br) LOG104AID Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG104AIDE4 Logarithmic Amplifier, -40 to 85 degC, 8-pin SOIC (D8), Green (RoHS & no Sb/Br) LOG104AIDG4 Logarithmic Amplifier, -40 to 85 d

P.Lathi,.Signal.Processing.and.Linear.Systems.pdf

分段线性拟合matlab代码 Piecewise linear fitting/regression MATLAB This method can be used in both linear regrassion and nonlinear regression. The dimension of beta depends on the number of coefficient you are seeking. 线性非线性皆适用 本例中要根据数据拟合两段直线，已知两段直线在x轴截距分别为(0，0)和(133，0)，断点在0.95max{ydata}处。本文亮点在于利用逻辑语句进行分段函数定义的方法。网上有许多方法都不如此法简洁明了。 参考网站： code： clc clear all close all load('1.mat') %x0为断点 x0 = 0.95*xdata(ydata == max(ydata)); %定义分段函数，采用匿名函数语法 model = @(beta,x) beta(1).x.(x>0&x=x0&x<1

一本关于线性规划和非线性规划理论的英文原版书。

nimnlopt：非线性优化库Nlopt的包装